I have installed OpenVPN on my mobile phone(android). I can connect to my router successfully. But the problem is: I couldn't access the internet after VPN is connected. Firstly I think maybe the problem of DNS. But I try to access the gateway by typing 192.168.1.1, I still couldn't access it. So it's not the problem of DNS. Why? By the way, the OpenVPN client on laptop can access the internet. No problem.